If you are into building your own electronics for RC use, this is one of the best resources available.
http://www.uoguelph.ca/~antoon/gadgets/gadgets.htm (http://www.uoguelph.ca/~antoon/gadgets/gadgets.htm)
Keep us posted if anyone built anything from the huge list of items above. Performance and cost comparisons would be great, especially for people on a budget.
Good one!... Pretty good collection of circuits.
-Ismail